# An object with a mass of #2 kg# is traveling at #14 m/s#. If the object is accelerated by a force of #f(x) = x+xe^x # over #x in [0, 9]#, where x is in meters, what is the impulse at #x = 8#?

##### 1 Answer

Mar 24, 2016

1

#### Explanation:

The definition of impulse is

and using the 2nd law of Newton

so, we need to calculate the speed at the position

By the 2nd law of Newton

thus, the impulse is